angle 8 Moving Day: A student gently sets a block of mass M = 3.0 kg on a ramp that makes an 30° with the horizontal. The coefficient of static friction between the block and the ramp is μ = 0.50 and μ = 0.30. When she lets go of the block, will it stay in place or will it move? If it stays in place, find the magnitude and direction of the static friction force. If it moves, find the magnitude and direction of the acceleration. -

You need to push a couch 4 m to the other side of the room. After the initial push to get it going you push on the 90kg couch with a steady horizontal force of 600 N. The coefficient of kinetic friction between the couch and the floor is 0.6.  1. What is the magnitude and direction of the frictional force on the couch?   2. What is the magnitude and direction of the net force on the couch?   3. What is the magnitude and direction of the acceleration of the couch?

A. C. D. A motorcyclist is cornering on a curved race track. Which combination of changes of banking angle and coefficient of friction u between the tyres and road allows the motorcyclist to travel around the corner at greater speed? Banking angle 8 increase increase decrease decrease 0 cornering Coefficient of friction μ increase decrease cornering increase decrease

In the figure, two blocks are connected over a pulley. The mass of block A is 14.0 kg and the coefficient of kinetic friction between A and the incline is 0.140. Angle 0 of the incline is 42.0°. Block A slides down the incline at constant speed. What is the mass of block B? Frictionless, massless pulley A B Number i Units

A sled and rider have a total mass of 60.0 kg. They are on a snowy hill. The coefficient of kinetic friction between the sled and the snow is 0.150. The angle of the hill's slope measured upward from the horizontal is 24.0°. What is the acceleration of the rider?Is the acceleration greater, less than, or equal to your result if a more massive rider uses the same sled on the same hill? Explain.

A book slides across a level, carpeted floor with an initial speed of 4.85 m/s and comes to rest after 3.75. Calculate the coefficient of kinetic friction ?kμk between the book and the carpet. Assume the only forces acting on the book are friction, weight, and the normal force. ?=

In the figure, two blocks are connected over a pulley. The mass of block A is 13.0 kg and the coefficient of kinetic friction between A and the incline is 0.300. Angle 0 of the incline is 44.0°. Block A slides down the incline at constant speed. What is the mass of block B? Frictionless, massless pulley Number i Units

m1 m2 F. m3 Three blocks are placed in contact with each other and their masses are ml = 10.9 kg, m2 = 20.9 kg, and m3 = 30.9 kg. The coefficients of kinetic and static friction between each pair of the surfaces in contact are 0.600 and 0.650, respectively. A horizontal pull F = 540 N to the right is exerted on the bottom block as shown in the figure. All the three blocks move together. Find the magnitude and direction of friction force on the top block m1. (g = 10.0 m/s² )(q1510)

A woman pushes a 10.0 kg box across a horizontal floor with a constant force of magnitude 40.0 N directed at an angle of -25° with respect to the positive x-axis. The box moves horizontally to the right. At the origin (x=0) the box has an initial speed of 4.00 m/s and the woman pushes it to a location ofx=3.00 m. what is the force of the woman? what is the force of gravity? what is the normal force of the floor?

Two crates of fruit  are released from the top of a ramp inclined at 30 degrees from the horizontal and 4.5 meter long. The two crates consist of  an apple crate of mass 20 kg that is placed in front of a watermelon crate of mass 80 kg.  The apple crate has a coefficient of friction of 0.20 while the watermelon crate has a coefficient of friction of 0.15. How long does it take the apple crate to reach the bottom of the incline if it needs to travel a distance of 4.5 meters?